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fix: inline element with visibile child now is considered visible #8130

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merged 2 commits into from Aug 17, 2020
Merged

fix: inline element with visibile child now is considered visible #8130

merged 2 commits into from Aug 17, 2020

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panzarino
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@panzarino panzarino commented Jul 30, 2020 •
edited by jennifer-shehane

User facing changelog

Fixes an issue where a display: inline parent would be considered hidden if it had a visible child who had display: block

Additional details

I do not think that implementing this fix is an appropriate course of action, see this comment in the original issue: #6183 (comment). Updated comment: #8130 (comment)

I would like to have a discussion around this before we decide to merge these changes.

How has the user experience changed?

Given the following test case (modified here so may not work exactly, but shows the general idea, actual test case can be seen in diff):

const element = `
<div>
  <span>
    <label style="display: block;">display: block</label>
  </span>
</div>
`

it('parent is visible if display inline and child has display block', function () {
  expect(element.find('span')).to.be.visible
  expect(element.find('span')).to.not.be.hidden
})

Before:

Screen Shot 2020-07-30 at 11 51 56 AM

After:

Screen Shot 2020-07-30 at 11 51 15 AM

Given the original test case from the issue:

<html>
<body>
  <p>
    <span onmouseover="window.hover.style.display='block'" onmouseout="window.hover.style.display='none'">
      <label style="display: block">Hover me!</label>
    </span>
  </p>
  <p id="hover" style="display: none">
    Hovering!
  </p>
</body>
</html>
it("should work", () => {
  cy.visit("index.html")
  cy.get("span").trigger("mouseover")
})

Before:

After:

Screen Shot 2020-07-30 at 12 10 19 PM

PR Tasks

  • Have tests been added/updated?
  • Has the original issue been tagged with a release in ZenHub?

@cypress-bot
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cypress-bot bot commented Jul 30, 2020

Thanks for taking the time to open a PR!

@cypress
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cypress bot commented Jul 30, 2020


Test summary

7925 • 0 • 130 • 2

Run details
Project cypress
Status Passed
Commit 77dedc0
Started Jul 30, 2020 4:10 PM
Ended Jul 30, 2020 4:17 PM
Duration 06:36 💡
OS Linux Debian - 10.1
Browser Multiple

View run in Cypress Dashboard ➡️

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@jennifer-shehane
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Commented in issue: #6183 (comment) Yah, maybe another short discussion similar to opacity would be good.

@panzarino
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@jennifer-shehane I think that we should go ahead with this fix. Despite the concern that this goes against the DOM structure in Chrome, it does not change any behavior in Firefox. Therefore, I think we should implement the change in order to standardize our tests across Chrome and Firefox, since it is less important that our visibility algorithm is technically correct regarding an edge case for an ambiguous W3 specification and more important that our tests are consistent between browsers.

@jennifer-shehane
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Ok, I had a discussion task opened TR-232, but if you don't think that's necessary then I'll re-review.

@panzarino
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@jennifer-shehane I would be open to having a discussion, but when I mentioned it in our Slack it did not get much interest. I can ask again on <onday and see if there is more interest.

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@jennifer-shehane jennifer-shehane merged commit 4c8fb2f into develop Aug 17, 2020
@cypress-bot cypress-bot bot mentioned this pull request Aug 17, 2020
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@warrensplayer warrensplayer mentioned this pull request Jun 12, 2023
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@jennifer-shehane jennifer-shehane jennifer-shehane approved these changes

@chrisbreiding chrisbreiding Awaiting requested review from chrisbreiding

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Successfully merging this pull request may close these issues.

Inline, zero-dimension element: erroneous visibility determination
2 participants
@panzarino @jennifer-shehane